feat(main): implement []string flag valuer

Implement flag.Value to automnatically split strings into an array at
their spaces.

Change-Id: Ia9139e23d74a30acfc74cb65935bb7fc2b322aec

1 files changed, 29 insertions, 0 deletions

diff --git a/internal/flag/flag_test.go b/internal/flag/flag_test.go
new file mode 100644
index 0000000..f5ffca4
--- /dev/null
+++ b/internal/flag/flag_test.go
@@ -0,0 +1,29 @@
+package flag_test
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/terinjokes/bakelite/internal/flag"
+)
+
+func TestStringsValue(t *testing.T) {
+	tests := []struct {
+		v    string
+		want []string
+	}{
+		{"", []string{}},
+		{"a b c", []string{"a", "b", "c"}},
+		{"foo bar baz", []string{"foo", "bar", "baz"}},
+		{"foo  bar  baz", []string{"foo", "bar", "baz"}},
+	}
+
+	for i, tt := range tests {
+		got := flag.StringsValue([]string{})
+		got.Set(tt.v)
+
+		if diff := cmp.Diff(tt.want, got.Get()); diff != "" {
+			t.Errorf("#%d: manifest differs. (-got +want):\n%s", i, diff)
+		}
+	}
+}